Rookie linebacker Sio Moore hopes he has something more than what meets the eye.

"My energy is something that can be contagious," he said.

Moore definitely got the crowd going in the first quarter with a sack and a little dance.

"I kind of lost myself there for a minute," he said.

Moore is still a little rough around the edges, and got exposed on a couple of Cowboys runs, but his learning curve will be quick.

Moore is starting at outside linebacker, but also lined up at times with his hand in the dirt as a defensive end on passing downs. Moore is 6-foot-1 and 240 pounds and was going against 6-6, 325-pound Cowboys tackle Doug Free on those plays.

"That's something I see him being able to do. ... I don't know if I see him doing it 70 snaps a game," Raiders coach Dennis Allen said. "I am not comparing him to Von Miller, who I had in Denver, but we did the same thing with him. He can potentially serve that role."

Block party: There is no better way to introduce a new special teams coach to the home crowd than with a big play. Tyvon Branch blocked a 26-yard field by Dallas kicker Dan Bailey in the second quarter, and Nick Roach returned it 19 yards.

"Tracy (Porter) got really close to blocking it" on Dallas' first field goal, Branch said, "so I think the wing tried to overextend to get him and I just shot the gap."

New special teams coach Bobby April would like a touchdown return for his next trick, but that may take a little while. Jacoby Ford was out Friday night with an undisclosed injury and Josh Cribbs has been limited at camp coming off knee surgery.

The Cowboys later muffed a Marquette King punt.

Dez Bryant showcase: The Cowboys' Dez Bryant showed why he is one of the best receivers in the league. He threw former teammate Mike Jenkins around like a rag doll before one catch and then victimized Oakland's other starting cornerback, Porter, a couple of times after that.

He finished with three catches for 55 yards in the first quarter.

McFadden's cameo: Starting running back Darren McFadden didn't get a lot of action, lasting about half of a quarter. He finished with three carries for five yards and one catch for eight yards.

Starting free safety Charles Woodson took a seat later in the first quarter.

Briefly: The Raiders allowed 36 yards on the ground in the first half and 70 for the game. ... Left guard Tony Bergstrom made a nice block to spring Rashad Jennings on a 16-yard run straight ahead. It helped that Dallas was distracted by Terrelle Pryor lined up in the spread offense.